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gaia/apps/gallery/style/open.css

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+* { -moz-box-sizing: border-box; }
+
+html {
+  height: 100%;
+  width: 100%;
+  padding: 0;
+  margin: 0;
+  overflow: hidden;
+  font-size: 10px;
+}
+
+body {
+  background-color: black;
+  color: #fff;
+  font-size: 1rem;
+  margin: 0;
+  padding: 0;
+  height: 100%;
+  width: 100%;
+  overflow: hidden;
+  padding-bottom: 5rem;
+}
+
+#open {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  padding: 0;
+  margin: 0;
+  overflow: hidden;
+}
+
+/* like .frame in gallery.css */
+#frame {
+  position: absolute;
+  top: 5rem;
+  left: 0;
+  width: 100%;
+  bottom: 0;
+  padding: 0;
+  margin: 0;
+  overflow: hidden;
+  -moz-user-select: none;
+}
+
+#frame > .image-view {
+  top: 0;  /* javascript modifies this position with a transform */
+  left: 0;
+  position: absolute;
+  border-width: 0;
+  padding: 0;
+  margin: 0;
+  pointer-events: none;
+  -moz-user-select: none;
+}
+
+*.hidden {
+  display: none !important;
+}
+
+#message {
+  word-wrap: break-word;
+}
+
+#filename {
+  /* file name is not directional and stays LTR */
+  direction: ltr;
+}